Finding the Fourth Proportional to 89,422.22, 123,423 and 59,208.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,422.22 : 123,423 = 59,208.68 : x
2. Step 2: Convert to fraction form
   89,422.22/123,423 = 59,208.68/x
3. Step 3: Cross multiply
   89,422.22x = 123,423 × 59,208.68
4. Step 4: Simplify right side
   89,422.22x = 7,307,712,911.64
5. Step 5: Solve for x
   x = 7,307,712,911.64/89,422.22
6. Step 6: Final answer
   x = 81,721.44